Spectacles or eyeglasses.



N6. 720,859. I .PATENTED'FEB. 17, 1903'.

I B. T. TRUEBLOOD;

SPEGTAGLES 0R EYEGLASSES.

APPLICATION FILED JUNE 16, 1902.

K0 MODEL.

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UNITED STATES PATENT OFFICE.

I BARCLAY T. TRUEBLOOD, OF ONEILL,'NEBRASKA.

SPECTACLES- OR EYEGLASSES.

SFECIEICATION forming part of Letters Patent H0. 720,859, dated February17, 1903. application filed June 16, 1902. $erial No. 111,970. (liemodel.)

To all whom it inoty'concern:

BeitknownthatLBARCLAY T.TRUEBLOOD, a citizen of the United States,residing" at GNeill, in the county of Holt and State of Nobraska, haveinvented new and useful Improvements in Spectacles or Eyeglasses, ofwhich the following is a specification.

Myinvention relates to new and useful improvements in eyeglasses andspectacles; and its object is to provide a practically invisible rim orframe for each lens, which serves to hold the lens securely to thenose-piece with out the necessityof weakening the same by perforating itfor the reception of a securingpin, as in rimless glasses heretoforeconstructed. 7

Another object isto employ means whereby the rim may be readilytightened about the lens.

With the above and other objects in view the invention consists in thenovel construction and combination of parts hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings,showing the preferred form of my invention, and in which Figure 1 is anelevation of a pair of eyeglasses constructed in accordance with myinvention. Fig. 2 is a similar view of a pair of spectacles. Fig. 3 is asection through an eyeglass, the lens being shown partly in plan. Fig. 4is a section through one lens of a pair of spectacles. Fig. 5 is aperspective view of a mounting for an eyeglass-lens. Fig. 6 is a detailview of a mounting for spectacles, and Fig. 7' shows thetightening-screws of the devlce.

Referring to the figures by numerals of referencefl l are lenses of apair of eyeglasses, and these may be bifocal or of ordinaryconstruction. Each lens is provided in its periphery with a groove 2 forthe reception of a fine wire 3, which incloses the lens, and is providedat one end with a loop 4;. A mounting comprising a block 5, havingcurved arms 6 extending in opposite directions therefrom, is recessed inone end, as shown at 7, and a fixed clasp member 8 projects forward fromone side thereof, while a detachable clasp member 9 is'fitted in agroove 10 at the opposite side of said recess 7. The detachable memberof the clasp is adapted to clamp one end of the lens 1 upon the fixedmember, and a bolt ll is employed for holding the members clamped uponsaid lens. This bolt passes through the recess 7, before referred to,and is inclosed by the loop .4 of the wire 3. The other end of the wirepasses through an eye 12, formed in bolt 11, and when said bolt isturned by means of a screw-driver or other tool it is obvious that thewire 3 will be wound thereupon until the lens is drawn tightly intoposition in the mounting. A not .13 isthen screwed upon the bolt andclamps the members 8 and 9 upon the lens and prevents the bolt 11 fromturning and unwinding the wire. The free end of the wire is threadedinto a small aperture 14 in the mounting and cut off flush with the endthereof. The two mountings are connected by a nose-piece 15 in the usualmanner.

A pair of spectacles is constructed in a manner substantially similar tothat above described. In addition to the mountings of the nose-piece,however, it is necessary to provide the outer end of each lens with amounting 16for the hinged bow 17. The bow is connected to the mountingin the ordinary manner, and the mounting is provided with a fixed claspmember 18 and a detachable member 19, the two being clamped uponopposite sides of the lens 1 by a bolt 20, similar to bolt 11, beforedescribed. This bolt passes through a recess 21, formed between theclasp members, and the wire 3 is adapted to be secured thereto, as inthe nose-glass construction. A bolt 22 extends through the mounting ofthe nosepiece, and-the wire 3 is looped thereon. It will thus be seenthat when the wire is tightened by means of bolt 20 the mounting 16 willbe drawn tightly against the lens, and the clasp members 18 and 19 canthen be clamped upon said lens.

As the wire 3 is only subjected to tensile strain, it will be seen thata very fine wire can be employed, and as said wire is fitted in a groovein the edge of the lens it will be practically invisible and the glasseswill have every appearance of being rimless.

It will be readily understood that with this construction a compound orbifocal lens may be employed. Moreover, as the lens is not weakened by aperforation and as said lens is bound with the wire the glassesconstruct- I GO ed in accordance with my invention are rendered asdurable as ordinary rim-glasses.

In the foregoing description I have shown the preferred form of myinvention; butI do 7 of the advantages thereof, and I thereforereservethe right to make all such changes as fairly fall within the scope ofthe invention.

Having thus fully described the invention, what is claimed as new is- 1.In a device of the character described, the combination with a lenshaving a grooved periphery, of a mounting, a flexible strip within thegroove and inclosing the lens, and a rotatable device extending througha portion of the mounting and engaged by the said flexible strip, thesaid rotatable device being exteriorly accessible for tightening orloosening the said strip.

2. In a device of the character described, the'combination with a lenshaving a grooved periphery, of a mounting, a flexible strip within thegroove and inclosing the lens, a bolt within the mounting engaged by theflexible strip, and adapted when turned to tighten the same, and a claspupon the mounting adapted to be clamped upon the lens by said bolt.

3. In a device of the character described, the combination with alenshaving a grooved periphery; of a mounting, a flexible strip within thegroove and inclosing the lens, a bolt Within the mounting and having anaperture therein, and a loop at one end of the strip and engaging thebolt, the opposite end of said strip extending into the aperture in thebolt.

4. In a device of the character described, the combination with a lenshaving a grooved periphery; of a mounting, a flexible strip within thegroove and inclosing the lens, means within the mounting for tighteningthe strip upon the lens, a second mounting having a bow hinged thereto,and a bolt within said second mounting engaged by the flexible strip.

5. In a device of the character described, the combination with a lenshaving a grooved periphery, of a mounting, clasp members thereon,a boltfor clamping the members upon the lens, a'wire within the groove andinclosingthe lens, said Wire being secured to the bolt and adapted to betightened thereby.

6. In a device of the character described, the combination with a lenshaving a grooved periphery, of a mounting, clasp members thereon, a boltfor clamping the members upon the lens, a wire within the groove andinclosing the lens, said wire being secured to the bolt and adapted tobe tightened thereby, a second mounting having a bow hinged thereto,clasp members thereto, and a bolt for clamping said members upon thelens, said bolt being engaged by the wire.

In testimony whereof I aflix my signature in presence of two witnesses.Y

BARCLAY T. TRUEBLOOD.

Witnesses:

A. H. OoRBETT, A. B. NEWELL.

